Which is better, a console with a variable frequency or one with a fixed frequency?

I've read that the Ps5 with its variable frequency can get more power than the Xbox Series X with its fixed frequency, because the variable frequency squeezes out more power for the GPU. The Ps5 will regulate the clock frequency, so use the power when it is really needed. Is that so?

As far as the GPU is concerned, the PS5 can reach a clock rate of up to 2.23 GHz. However, it only has 36 computer units.

The Xbox Series X only has a clock frequency of 1.825 GHz, but 52 compute units. It can therefore carry out more calculation steps in one cycle.

The invoices carried out therefore offer a better comparison. The PS5 GPU manages 10.28 TFlop / s while the GPU of the Xbox Series X manages 12 TFlop / s.

For comparison: Processors have had similar clock frequencies for decades. Nevertheless, processors are getting better and better because, on the one hand, they get more cores and, on the other hand, the cores can carry out more and more computing operations in one cycle.

Variable frequencies ensure that a component can be subjected to higher loads than intended for a period of time, but not permanently, as it will otherwise be damaged (you can save on the price of the component for this) or that you can save electricity with less load. It is generally unpleasant for a developer if a device behaves differently in different situations.

Holgerholg has already said everything about it.

Variable is always better. You don't need the same performance all the time